CVE-2026-20091
Estado: AplazadaMedia (4.8)—
A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface.
Detalles técnicos trazas, registros y código del informe original
This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability by injecting malicious data into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid credentials for a user account with the role of Administrator or AAA Administrator.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- Puntuación base: 4.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.18%
- Percentil entre todas las CVEs puntuadas: 7
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-79
Referencias
JSON original (NVD)
Mostrar
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"published": "2026-02-25T17:25:26.830",
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsfxosxss-7skVE8Zv",
"source": "psirt@cisco.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability by injecting malicious data into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid credentials for a user account with the role of Administrator or AAA Administrator. "
},
{
"lang": "es",
"value": "Una vulnerabilidad en la interfaz de gestión basada en web de Cisco FXOS Software y Cisco UCS Manager Software podría permitir a un atacante remoto autenticado realizar un ataque de cross-site scripting (XSS) almacenado contra un usuario de la interfaz.\n\nEsta vulnerabilidad se debe a una validación insuficiente de la entrada proporcionada por el usuario por parte de la interfaz de gestión basada en web de un sistema afectado. Un atacante podría explotar esta vulnerabilidad inyectando datos maliciosos en páginas específicas de la interfaz. Un exploit exitoso podría permitir al atacante ejecutar código de script arbitrario en el contexto de la interfaz afectada o acceder a información sensible basada en el navegador. Para explotar esta vulnerabilidad, el atacante debe tener credenciales válidas para una cuenta de usuario con el rol de Administrador o Administrador AAA."
}
],
"lastModified": "2026-06-17T10:17:04.430",
"sourceIdentifier": "psirt@cisco.com"
}